277 	int do_wakeup;  in pipe_read()  local
284 	do_wakeup = 0;  in pipe_read()
327 				do_wakeup = 1;  in pipe_read()
355 		if (do_wakeup) {  in pipe_read()
364 	if (do_wakeup) {  in pipe_read()
384 	int do_wakeup = 0;  in pipe_write()  local
418 			do_wakeup = 1;  in pipe_write()
454 			do_wakeup = 1;  in pipe_write()
491 		if (do_wakeup) {  in pipe_write()
494 			do_wakeup = 0;  in pipe_write()
502 	if (do_wakeup) {  in pipe_write()